6-7583006-G-A

Position:

chr6-7583006-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_004415.4(DSP):c.5744G>A(p.Arg1915His) variant causes a missense change. The variant allele was found at a frequency of 0.0000366 in 1,614,070 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1915C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

DSP
NM_004415.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:2

Conservation

PhyloP100: 4.01

Variant links:

Genes affected

DSP (HGNC:3052): (desmoplakin) This gene encodes a protein that anchors intermediate filaments to desmosomal plaques and forms an obligate component of functional desmosomes. Mutations in this gene are the cause of several cardiomyopathies and keratodermas, including skin fragility-woolly hair syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

DSP links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.043056756).

BP6

Variant 6-7583006-G-A is Benign according to our data. Variant chr6-7583006-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 44931.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=6}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
DSP	NM_004415.4 linkuse as main transcript	c.5744G>A	p.Arg1915His	missense_variant	24/24	ENST00000379802.8
DSP	NM_001319034.2 linkuse as main transcript	c.4415G>A	p.Arg1472His	missense_variant	24/24
DSP	NM_001008844.3 linkuse as main transcript	c.3947G>A	p.Arg1316His	missense_variant	24/24

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DSP	ENST00000379802.8 linkuse as main transcript	c.5744G>A	p.Arg1915His	missense_variant	24/24	1	NM_004415.4	P2	P15924-1
DSP	ENST00000418664.2 linkuse as main transcript	c.3947G>A	p.Arg1316His	missense_variant	24/24	1		A2	P15924-2
DSP	ENST00000710359.1 linkuse as main transcript	c.4415G>A	p.Arg1472His	missense_variant	24/24			A2

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152074

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000386

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000386

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000127

AC:

AN:

251144

Hom.:

AF XY:

0.000103

AC XY:

AN XY:

135772

show subpopulations

Gnomad AFR exome

AF:

0.000616

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000761

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000274

AC:

AN:

1461878

Hom.:

Cov.:

AF XY:

0.0000275

AC XY:

AN XY:

727236

show subpopulations

Gnomad4 AFR exome

AF:

0.000149

Gnomad4 AMR exome

AF:

0.0000894

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000327

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000899

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.000125

AC:

AN:

152192

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74412

show subpopulations

Gnomad4 AFR

AF:

0.000385

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000387

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000316

Hom.:

Bravo

AF:

0.000178

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000165

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:6Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Jul 11, 2017	A variant of uncertain significance has been identified in the DSP gene. The R1915H variant has not been published as pathogenic or been reported as benign to our knowledge. This variant is observed in 7/8640 (0.08%) alleles from individuals of East Asian ancestry and in 7/10306 (0.07%) alleles from individuals of African ancestry in the Exome Aggregation Consortium (ExAC) dataset (Lek et al., 2016; Exome Variant Server). The R1915H variant is a conservative amino acid substitution, which is not likely to impact secondary protein structure as these residues share similar properties. This substitution occurs at a position that is only conserved in mammals. Finally, in silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function. -
Uncertain significance, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Apr 01, 2022	The p.Arg1915His variant in DSP has been reported by our laboratory in 1 individual with HCM, 1 individual with DCM, and 1 individual with ARVC (LMM data). It has also been identified in 0.08% (15/19944) of East Asian chromosomes by gnomAD (http://gnomad.broadinstitute.org). This variant has also been reported in ClinVar (Variation ID 44931). Computational prediction tools and conservation analyses do not provide strong support for or against an impact to the protein. In summary, the clinical significance of this variant is uncertain. ACMG/AMP Criteria applied: BS1_P. -

Arrhythmogenic cardiomyopathy with wooly hair and keratoderma

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

All of Us Research Program, National Institutes of Health

Nov 30, 2023

This missense variant replaces arginine with histidine at codon 1915 of the DSP protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 39/282514 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -

Cardiomyopathy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Color Diagnostics, LLC DBA Color Health

Apr 24, 2023

Skin fragility with non-scarring blistering;C4024876:Palmoplantar blistering

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Centre for Mendelian Genomics, University Medical Centre Ljubljana

Jan 01, 2017

- -

Primary familial dilated cardiomyopathy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute

Nov 28, 2016

- -

Arrhythmogenic right ventricular dysplasia 8;C1854063:Arrhythmogenic cardiomyopathy with wooly hair and keratoderma

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Jan 15, 2024

- -

Cardiovascular phenotype

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 30, 2021

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.094

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.23

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.35

T;.

Eigen

Uncertain

0.25

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.92

D;D

M_CAP

Benign

0.021

MetaRNN

Benign

0.043

T;T

MetaSVM

Benign

-0.84

MutationAssessor

Benign

1.4

L;.

MutationTaster

Benign

0.83

N;N

PrimateAI

Benign

0.43

PROVEAN

Benign

-0.79

N;N

REVEL

Benign

0.19

Sift

Benign

0.24

T;T

Sift4G

Benign

0.19

T;T

Polyphen

0.99

D;.

Vest4

0.26

MVP

0.63

MPC

0.41

ClinPred

0.019

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.064

gMVP

0.25

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over